Their findings, published online this month in the journal Nucleic Acid Research, suggest that LCT13 may be involved in switching off TFPI-2.

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This faulty genetic element was previously identified by Dr Tufarelli’s team as part of a group of chimeric transcripts which are produced by DNA sequences frequently regarded as ‘junk DNA’ called LINE-1 (L1).

The work reported now expands on the previous observation as it indicates that in addition to acting as potential diagnostic tools these rogue elements can play an active role in cancer.

Dr Tufarelli said: “This study has identified a novel way in which ‘junk DNA’ can interfere with the normal functioning of a cell. The next step will be to understand how these elements become switched on. This information will be important in the design of treatments aimed to prevent activation of these elements and cancer progression.”

A copy of the paper, Expression of a Large LINE-1 Driven Antisense RNA is Linked to Epigenetic Silencing of the Metastasis Suppressor Gene TFPI-2 in Cancer, is available to view online on the website for the journal Nucleic Acid Research.

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